I love these companies. I purchased the BME medium which was too soft. The firm was to hard. I have had previously the BB full memory foam mattress and liked that. I am now trying the Aria. I am excited for it to come. My apartment is looking like a mattress store right now. A bad disc in my lower back makes waking up in the morning tough when the mattress is not right.
Hi reflexbug,
Congratulations on your new mattress 
As you know the Dreamfoam Aria is a memory foam mattress and will certainly be different from the BME which has latex comfort layers.
I’m looking forward to your comments and feedback once you’ve received it and have had the chance to try it out.
Phoenix